X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/401f12d020e8ed4921ea75a53c4f7f135b9a7803..cbb8a432c4632cac90cdf07a4cea61ed3056fb6c:/package/mtd/src/mtd.c diff --git a/package/mtd/src/mtd.c b/package/mtd/src/mtd.c index 5ec79dce0..8b87bada3 100644 --- a/package/mtd/src/mtd.c +++ b/package/mtd/src/mtd.c @@ -44,31 +44,10 @@ #include "mtd-api.h" #include "fis.h" #include "mtd.h" -#include "crc32.h" #define MAX_ARGS 8 #define JFFS2_DEFAULT_DIR "" /* directory name without /, empty means root dir */ -#if __BYTE_ORDER == __BIG_ENDIAN -#define STORE32_LE(X) ((((X) & 0x000000FF) << 24) | (((X) & 0x0000FF00) << 8) | (((X) & 0x00FF0000) >> 8) | (((X) & 0xFF000000) >> 24)) -#elif __BYTE_ORDER == __LITTLE_ENDIAN -#define STORE32_LE(X) (X) -#else -#error unkown endianness! -#endif - -ssize_t pread(int fd, void *buf, size_t count, off_t offset); -ssize_t pwrite(int fd, const void *buf, size_t count, off_t offset); - -#define TRX_MAGIC 0x30524448 /* "HDR0" */ -struct trx_header { - uint32_t magic; /* "HDR0" */ - uint32_t len; /* Length of file including header */ - uint32_t crc32; /* 32-bit CRC from flag_version to end of file */ - uint32_t flag_version; /* 0:15 flags, 16:31 version */ - uint32_t offsets[3]; /* Offsets of partitions from start of header */ -}; - static char *buf = NULL; static char *imagefile = NULL; static char *jffs2file = NULL, *jffs2dir = JFFS2_DEFAULT_DIR; @@ -151,9 +130,9 @@ static int image_check(int imagefd, const char *mtd) { int ret = 1; -#ifdef target_brcm - ret = trx_check(imagefd, mtd, buf, &buflen); -#endif + if (trx_check) { + ret = trx_check(imagefd, mtd, buf, &buflen); + } return ret; } @@ -265,82 +244,6 @@ mtd_erase(const char *mtd) } -static int -mtd_fixtrx(const char *mtd, size_t offset) -{ - int fd; - struct trx_header *trx; - char *buf; - ssize_t res; - size_t block_offset; - - if (quiet < 2) - fprintf(stderr, "Trying to fix trx header in %s at 0x%x...\n", mtd, offset); - - block_offset = offset & ~(erasesize - 1); - offset -= block_offset; - - fd = mtd_check_open(mtd); - if(fd < 0) { - fprintf(stderr, "Could not open mtd device: %s\n", mtd); - exit(1); - } - - if (block_offset + erasesize > mtdsize) { - fprintf(stderr, "Offset too large, device size 0x%x\n", mtdsize); - exit(1); - } - - buf = malloc(erasesize); - if (!buf) { - perror("malloc"); - exit(1); - } - - res = pread(fd, buf, erasesize, block_offset); - if (res != erasesize) { - perror("pread"); - exit(1); - } - - trx = (struct trx_header *) (buf + offset); - if (trx->magic != STORE32_LE(0x30524448)) { - fprintf(stderr, "No trx magic found\n"); - exit(1); - } - - if (trx->len == STORE32_LE(erasesize - offset)) { - if (quiet < 2) - fprintf(stderr, "Header already fixed, exiting\n"); - close(fd); - return 0; - } - - trx->len = STORE32_LE(erasesize - offset); - - trx->crc32 = STORE32_LE(crc32buf((char*) &trx->flag_version, erasesize - offset - 3*4)); - if (mtd_erase_block(fd, block_offset)) { - fprintf(stderr, "Can't erease block at 0x%x (%s)\n", block_offset, strerror(errno)); - exit(1); - } - - if (quiet < 2) - fprintf(stderr, "New crc32: 0x%x, rewriting block\n", trx->crc32); - - if (pwrite(fd, buf, erasesize, block_offset) != erasesize) { - fprintf(stderr, "Error writing block (%s)\n", strerror(errno)); - exit(1); - } - - if (quiet < 2) - fprintf(stderr, "Done.\n"); - - close (fd); - sync(); - return 0; - -} - static int mtd_refresh(const char *mtd) { @@ -547,7 +450,7 @@ resume: /* erase the chunk */ e += erasesize; } - } + } if (!quiet) fprintf(stderr, "\b\b\b[w]"); @@ -594,8 +497,12 @@ static void usage(void) " refresh refresh mtd partition\n" " erase erase all data on device\n" " write |- write (use - for stdin) to device\n" - " jffs2write append to the jffs2 partition on the device\n" - " fixtrx fix the checksum in a trx header on first boot\n" + " jffs2write append to the jffs2 partition on the device\n"); + if (mtd_fixtrx) { + fprintf(stderr, + " fixtrx fix the checksum in a trx header on first boot\n"); + } + fprintf(stderr, "Following options are available:\n" " -q quiet mode (once: no [w] on writing,\n" " twice: no status messages)\n" @@ -604,8 +511,12 @@ static void usage(void) " -f force write without trx checks\n" " -e erase before executing the command\n" " -d directory for jffs2write, defaults to \"tmp\"\n" - " -j integrate into jffs2 data when writing an image\n" - " -o offset offset of the trx header in the partition (for fixtrx)\n" + " -j integrate into jffs2 data when writing an image\n"); + if (mtd_fixtrx) { + fprintf(stderr, + " -o offset offset of the image header in the partition(for fixtrx)\n"); + } + fprintf(stderr, #ifdef FIS_SUPPORT " -F [:[:]][,...]\n" " alter the fis partition table to create new partitions replacing\n" @@ -686,6 +597,10 @@ int main (int argc, char **argv) jffs2dir = optarg; break; case 'o': + if (!mtd_fixtrx) { + fprintf(stderr, "-o: Only for brcm47xx/brcm63xx\n"); + usage(); + } errno = 0; offset = strtoul(optarg, 0, 0); if (errno) { @@ -717,7 +632,7 @@ int main (int argc, char **argv) } else if ((strcmp(argv[0], "erase") == 0) && (argc == 2)) { cmd = CMD_ERASE; device = argv[1]; - } else if ((strcmp(argv[0], "fixtrx") == 0) && (argc == 2)) { + } else if (((strcmp(argv[0], "fixtrx") == 0) && (argc == 2)) && mtd_fixtrx) { cmd = CMD_FIXTRX; device = argv[1]; } else if ((strcmp(argv[0], "write") == 0) && (argc == 3)) { @@ -793,7 +708,9 @@ int main (int argc, char **argv) mtd_refresh(device); break; case CMD_FIXTRX: - mtd_fixtrx(device, offset); + if (mtd_fixtrx) { + mtd_fixtrx(device, offset); + } break; }